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81 results about "Gyrotron" patented technology

A gyrotron is a class of high-power linear-beam vacuum tubes which generates millimeter-wave electromagnetic waves by the cyclotron resonance of electrons in a strong magnetic field. Output frequencies range from about 20 to 527 GHz, covering wavelengths from microwave to the edge of the terahertz gap. Typical output powers range from tens of kilowatts to 1–2 megawatts. Gyrotrons can be designed for pulsed or continuous operation. The gyrotron was invented by soviet scientists at NIRFI, based in Nizhny Novgorod, Russia.

Ion source automatic beam adjusting method, radiotherapy system and related equipment

The invention discloses an ion source automatic beam adjusting method, a radiotherapy system and related equipment, and relates to the technical field of radiotherapy, and the method comprises the steps: monitoring and adjusting a plurality of control parameters in real time, and obtaining an optimal control parameter combination; under the optimal control parameter combination, the variable quantity of each control parameter before and after adjustment and the performance change of the proton beam are obtained; performing a pulse width charge test according to the variation of each parameter before and after adjustment and the performance change of the proton beam; obtaining an optimal adjustment parameter and an adjustment amount through a pulse width charge test result; and through the optimal adjustment parameter and adjustment amount, automatic beam adjustment is realized, stable and efficient acceleration of the proton beam in the synchrocyclotron system is realized, and the stability and consistency of the proton beam are ensured.
Owner:MEVION MEDICAL EQUIPMENT CO LTD

Extinguishing wildfires with light and other applications

A directed energy firefighting device is disclosed to extinguish fires with light, comprising a structured light generator and a directed energy controller for detecting and extinguishing fires remotely and at the speed of light. The device employs structured directed light energy capable of inducing atmospheric avalanche breakdown, generating at least one of sound waves and shockwaves, and dynamically forming space-time acoustic arrays for precise fire suppression. The system may integrate one or more energy sources, including gyrotrons, traveling wave tubes, klystrons, free electron lasers, and others, to produce diffraction-resistant and dynamically structured beams that penetrate through the atmospheric and non-metalic solid physical obstructions. Key features also may include safety mechanisms and artificial intelligence for real-time optimization. Other applications include power beaming, environmental monitoring, medicine, disaster response, and orbital debris clearing are also discussed. A key feature is the ability for arbitrary manipulation of light over large areas.
Owner:GIANT LEAP HLDG LLC

High-power and frequency-adjustable gyrotron loading test system for nuclear fusion

The invention discloses a high-power and frequency-adjustable gyrotron loading test system for nuclear fusion, which relates to the technical field of nuclear fusion and comprises a 2-megawatt coaxial gyrotron with adjustable frequency of 170 / 240GHz and a loading test platform. The loading test platform comprises a gyrotron part loading system, a strong magnet system, a vacuumizing system, a power supply system, a load system, a cooling system, a monitoring and diagnosing system and a control system. The component loading system is used for precise assembly; the strong magnet system provides an adjustable strong magnetic field; the vacuumizing system maintains ultrahigh vacuum; the power supply system comprises a cathode power supply and a body power supply, and the body power supply is used as a high-voltage amplifier to realize 10kHz rapid power modulation; the cooling system provides independent active cooling; the load system simulates a real load; comprehensive detection of the monitoring and diagnosis system; and the control system realizes coordinated control and rapid protection. According to the invention, a complete solution is provided for development, test, operation and maintenance of the 2-megawatt-level and frequency-adjustable gyrotron.
Owner:XIANGTAN SHUANGCHAO QUENCHED ROCK NEW ENERGY TECHNOLOGY CO LTD

Structure for inhibiting interaction of front cavities in frequency-adjustable high-power gyrotron

The invention discloses a structure for inhibiting front cavity interaction in a frequency-adjustable high-power gyrotron, which is used for carrying out PIC analogue simulation on the basis of a frequency-adjustable gyrotron developed in a laboratory, and verifying the front cavity interaction by utilizing a gyrotron linear theory and a generalized scattering matrix theory according to a generation principle of the front cavity interaction. And on the basis, adjustment and simulation analysis are carried out on the cavity structure of the gyrotron, a feasible way for inhibiting the interaction of the front cavity is found out, and stable work of the gyrotron during frequency tuning is ensured. The structure is composed of the periodic loading dielectric waveguide from the rear end of the electron gun to the beam-wave interaction front end, the design is simple, the cost is low, and the problems that the overall efficiency of the gyrotron is reduced and the working stability of the gyrotron is damaged due to interaction of the front cavity of the non-interaction section in the existing gyrotron are solved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Multi-pipe ECRH system thermal load management method and system based on low-power basic operation

The invention provides a multi-tube ECRH system thermal load management method based on low-power basic operation, and belongs to the field of electron cyclotron resonance heating systems. When the target total power and the operation duration are received, a time period is judged, one gyrotron is dispatched in turn as a rest gyrotron, and the other gyrotrons are dispatched as working gyrotrons; the method comprises the following steps: periodically collecting the operation power and the collector temperature of each gyrotron, calculating the accumulated thermal load of each gyrotron, calculating the thermal load relative deviation of each gyrotron based on the average thermal load of all gyrotrons at the end of each time window, marking the gyrotron with the thermal load relative deviation exceeding a threshold value as a gyrotron to be adjusted, and adjusting the gyrotron to be adjusted according to the thermal load relative deviation. According to the thermal load relative deviation of the gyrotron to be adjusted, the adjustment amount is calculated, the operation power of the gyrotron to be adjusted is adjusted, and the operation power of all the working tubes is dynamically adjusted; the invention further provides a thermal load management system. And the contradiction between quick response and heat management and between power stability and heat balance is broken through.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Novel electron gun for cyclotron wave protector

PendingCN120413392ATransit-tube electron/ion gunsTransit-tube cathodesCold cathodeHomogeneous magnetic field
The invention discloses a novel electronic gun for a cyclotron wave protector, and relates to the technical field of vacuum electronic devices. The electron gun comprises a cathode assembly, an anode assembly, a supporting assembly and a permanent magnet system. Wherein the cathode assembly adopts a planar cold cathode structure; the anode assembly comprises an anode main body and an electron beam channel in the anode main body; the cathode and the anode are fixedly connected through a supporting assembly; the permanent magnet system provides a uniform magnetic field. The cold cathode is adopted to replace a traditional hot cathode to generate high-quality strip-shaped electron beams, and the device has the advantages of being simple in structure, easy to integrate, rapid to start, long-acting, reliable, low in consumption and energy-saving.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Fixing device applied to assembling and welding of whole gyrotron

The invention discloses a fixing device applied to assembling and welding of a whole gyrotron. The fixing device comprises an assembling mechanism and a welding mechanism. The assembling mechanism comprises a frame body, vertical sliding rails are arranged on the two sides of the frame body, and a first sliding module used for clamping and pressing a collector, a second sliding module used for clamping a high-frequency component and a third sliding module used for clamping an electronic gun are sequentially arranged on the two vertical sliding rails from top to bottom in a sliding mode. The first sliding module, the second sliding module and the third sliding module are in transmission connection with the first driving mechanism, the second driving mechanism and the third driving mechanism respectively, and a rotating module used for clamping an electronic gun and driving the electronic gun to rotate is arranged at the bottom of the frame body; a coaxiality detection mechanism and an air tightness detection mechanism are arranged on the assembling mechanism; according to the scheme, the modular integrated design is adopted, all functional units work cooperatively, the assembling and welding requirements of gyrotron of multiple specifications are met, and the assembling and welding precision and efficiency are high.
Owner:SICHUAN JANUOCHUANG TECH CO LTD

System and method for distance determination within borehole

Systems and methods for performing MMWD using a gyrotron to provide electromagnetic waves into a borehole via a waveguide during formation of the borehole are provided herein. Radar or acoustic signal processing techniques may be used to determine the depth of the borehole and the distance between the waveguide and the bottom of the borehole. Radar and acoustic signal sources may be configured to transmit measurement signals into the waveguide simultaneously with the electromagnetic waves transmitted by the gyrotron, eliminating the need for downhole sensing equipment and eliminating the need for drilling operation downtime to perform diagnostic depth measurements.
Owner:QUAISE INC

Planar resonant cavity for planar gyrotron and methods to improve output power

This disclosure provides a planar resonant cavity for a planar gyrotron and a method for increasing its output power, relating to the field of microwave technology. The planar resonant cavity includes: a resonant cavity for increasing the energy of electromagnetic waves; wherein the energy of the electromagnetic waves gradually increases based on the interaction between the electron beam and the electromagnetic wave; electron emitting surfaces, respectively disposed at the upper and lower ends of the cavity surface in the negative Z direction, for emitting electron beams; wherein the electron emitting surfaces at the upper and lower ends of the cavity surface are symmetrical based on both the central YZ plane and the central XZ plane of the resonant cavity; and baffles, including a left baffle and a right baffle, the left and right baffles having identical structures, respectively disposed in the X direction of the resonant cavity between the electron emitting surfaces and the two ends of the resonant cavity, for reflecting electromagnetic waves to enhance the interaction between the electron beam and the wave, increase the energy of the electromagnetic waves, and increase the output power of the electromagnetic waves.
Owner:AEROSPACE INFORMATION RES INST CAS

Non-adiabatic plane emission electron gun applied to gyrotron

ActiveCN120149130ATransit-tube electron/ion gunsTurbine tubesCurrent limitingParticle physics
The invention belongs to the technical field of millimeter wave sources, and particularly relates to a non-adiabatic plane emission electron gun applied to a gyrotron, which comprises a cathode assembly, an anode and a control electrode assembly, the cathode assembly is nested in the electrode manufacturing assembly and comprises an emitting surface for emitting electrons, and the emitting surface is of a plane structure; a radial hole is formed in the control electrode assembly; electrons are transmitted to the anode through the radial hole after being emitted from the emitting surface. The cathode assembly is arranged between the external control electrode and the internal control electrode, so that electron beams are only subjected to the action of axial electric field force in paths from a cathode emitting surface to an outlet of the control electrode, and the electron beams enter a heat insulation section in a linear track with higher quality. According to the electron gun, the current limitation of a traditional electron gun is broken through, and meanwhile good electron beam parameters are kept.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A high-power capacity gyrotron collector structure

This invention relates to the field of vacuum electronics technology, specifically to a high-power capacity gyrotron collector structure. It includes a nonlinear interaction section, after which multiple segmented units are coaxially connected. Each segmented unit includes an output mode transition or output mode converter and a collector uniformity section. An electron beam channel and a microwave transmission channel are formed within the nonlinear interaction section and the segmented units. The ends of the electron beam channel and microwave transmission channel have an output window. The nonlinear interaction section, the multiple segmented units, and the output window cause microwaves to undergo a series of reflections, resulting in phase superposition and cancellation. This invention, while maintaining the output window parameters, significantly reduces the number of secondary and reflected electrons impacting the output window, thereby effectively improving the power capacity of the structure. This structure has the advantages of convenient fabrication and simple process implementation. This invention can be used in all high-power gyrotrons with axial output modes.
Owner:NO 15 INST OF CHINA ELECTRONICS TECH GRP

Gyrotron high-frequency interaction structure formed by continuous curves

The invention discloses a gyrotron high-frequency interaction structure formed by continuous curves, which is characterized in that the gyrotron high-frequency interaction structure is composed of a cut-off section, an interaction section and an output section of a cubic spline difference fitting curve structure, and the curve slope at the joint of the cut-off section and the interaction section and the curve slope at the joint of the interaction section and the output section are consistent. Through the high-frequency interaction structure, a higher harmonic working mode can be excited in a terahertz frequency band, and the output characteristics of high efficiency and wide bandwidth are achieved. Under the working condition of a high-order axial mode, the gyrotron has stable output power and linear frequency change in the frequency adjusting process, and the effective working bandwidth is remarkably improved. The problems of power fluctuation and frequency hopping of the gyrotron under the working condition of a high-order axial mode are effectively solved, so that an excellent output effect is obtained.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A gyrotron component loading table

ActiveCN224393855UImprove assembly efficiencyAccurately pick up the assemblyControl devices for conveyorsRobot handPipe
The utility model discloses a gyrotron component loading platform belongs to gyrotron component assembly automation production equipment technical field, this gyrotron component loading platform includes loading frame, is provided with a plurality of material disc on loading frame, is provided with a plurality of circular grooves on every material disc, every material disc is matched with a gyrotron component, and a plurality of circular grooves are used for installing all different cylindrical rotator parts in single gyrotron component, when actually using, the manipulator can find the required part according to the preset program quickly, accurately and take, can satisfy the requirement of automation production, realizes the efficient automation assembly of gyrotron component. Compared with the need in manual assembly in a large number of tooling fixtures to find and take parts, greatly shorten the taking time, improve the assembly efficiency. Avoid the use of a large number of tooling fixtures in traditional manual assembly, reduce the cost of making new tooling fixtures due to new pipe type development, reduce the production cost of gyrotron.
Owner:SICHUAN JANUOCHUANG TECH CO LTD

Vacuum tube technology

PendingJP2026529011AResonant cavityPumping vacuum
A gyrotron component (100) is assembled, comprising: (a) a vacuum tube (110) including (i) a resonant cavity (130) at least partially defined by a tubular component (132); (ii) an electron gun chamber (120) hermetically sealed to the gun end of the tubular component such that its interior is continuous with the interior of the resonant cavity; and (iii) a collector chamber (140) hermetically sealed to the collector end of the tubular component such that its interior is continuous with the interior of the resonant cavity; and (b) an electromagnet coil 152 arranged around the outside of the tubular component. After the gyrotron assembly is assembled, the vacuum tube is vacuumed by (i) applying a vacuum to the vacuum tube and (ii) baking the vacuum tube by selectively heating the electron gun chamber and the collector chamber. Other embodiments are also described.

Sub-surface gyrotron drill for deep microwave drilling

PCT designated stageWO2026114834A1Thermal drillingWell drillingElectron bunches
A drill head (1) and corresponding method for drilling a borehole (2) into a sub-surface formation (3) comprises at least one drill housing (4) configured to be arranged sub-surface, and at least one gyrotron (5, 5a, …). The gyrotron (5, 5a, …) comprises an electron gun (6) configured to produce an electron beam, at least one magnet (7) configured to produce a magnetic field, and a cavity (8) configured to receive the electron beam and to generate microwaves by a resonance coupling between the electron beam and the magnetic field produced by the magnet (7). The microwaves are injectable into the sub-surface formation (3) for drilling the borehole (2). The gyrotron (5, 5a, …) is at least partially arranged in the drill housing (4) such, that the microwaves are generated sub-surface.
Owner:RESONANCE EXPLORATION TECHNOLOGIES AG

Compact gyrotron terahertz source device based on pulsed high-intensity magnetic field

ActiveCN121122984ATransit-time tubesResonant cavityHemt circuits
The invention belongs to the technical field of electric vacuum devices, and discloses a compact gyrotron terahertz source device based on a pulsed high-intensity magnetic field, which comprises a power supply part and a gyrotron body, the gyrotron body is provided with a cathode used for generating electron beams and a resonant cavity serving as an electron beam channel, and the peripheral wall of the outer side of the electron beam channel of the gyrotron body serves as an anode. A coil unit for generating a pulsed magnetic field is distributed on the outer side peripheral wall of the electron beam channel of the gyrotron body; the coil unit comprises a continuous electric conductor which is spirally wound for multiple circles along the peripheral side of the gyrotron body; according to the invention, the coil unit and the gyrotron body are connected in series in the same circuit, so that the current generated by the same power supply flows through the coil unit and the gyrotron body in sequence, and the problems of complex structure, poor synchronous control precision and large energy loss of a conventional dual-power-supply power supply system are effectively solved. And the working reliability and the energy utilization efficiency of the terahertz source device are improved.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Extinguishing wildfires with light and other applications

A directed energy firefighting device is disclosed to extinguish fires with light, comprising a structured light generator and a directed energy controller for detecting and extinguishing fires remotely and at the speed of light. The device employs structured directed light energy capable of inducing atmospheric avalanche breakdown, generating at least one of sound waves and shockwaves, and dynamically forming space-time acoustic arrays for precise fire suppression. The system may integrate one or more energy sources, including gyrotrons, traveling wave tubes, klystrons, free electron lasers, and others, to produce diffraction-resistant and dynamically structured beams that penetrate through the atmospheric and non-metalic solid physical obstructions. Key features also may include safety mechanisms and artificial intelligence for real-time optimization. Other applications include power beaming, environmental monitoring, medicine, disaster response, and orbital debris clearing are also discussed. A key feature is the ability for arbitrary manipulation of light over large areas.
Owner:GIANT LEAP HLDG LLC

A gyrotron type impact device

The application relates to the technical field of battery pack testing, in particular to a cyclotron type impact device which comprises a base, an arc-shaped track which is semicircular, an acceleration track which is semicircular and is vertically slidably connected to the base, an impact track which is vertically slidably connected to the base and is located above the acceleration track, one end of the impact track is matched with an outlet, and the other end is vertically upwardly provided with an impact head, an acceleration rod which is rotatably connected to the base, a rotating shaft which is vertically rotatably connected to the base and is controlled by an acceleration motor and is located at the center of the arc-shaped track, one end of the acceleration rod is mounted on the rotating shaft, and the other end of the acceleration rod is provided with an acceleration plate used for pushing a ball. The ball can be accelerated by rolling in the whole-circular track for unlimited times, the acceleration effect of the ball is not limited, the rolling number of the ball can be selected according to experimental requirements, the speed of the ball can be changed, and the application range is wide.
Owner:SHANGHAI TONGMIN VEHICLE TESTING TECH CO LTD +1

Gyrotron structure based on gradient output section and second harmonic electromagnetic wave generation method thereof

The invention discloses a gyrotron structure based on a gradual change output section and a second harmonic electromagnetic wave generation method thereof. The gyrotron structure comprises an open type gyrotron resonator with a three-section cavity structure, the open type cyclotron resonator comprises a cut-off section cavity of an inclined annular open type metal structure, an interaction section cavity of an open type metal cylindrical waveguide structure and an output section cavity of an inclined gradual change annular open type metal structure. The cut-off section cavity, the interaction section cavity and the output section cavity are sequentially connected end to end from left to right. According to the invention, three cavity structures which are combined in sequence are adopted to form the open-type cyclotron resonator, so that high-power electromagnetic waves can be generated at 263 GHz, and the open-type cyclotron resonator has the characteristic of second harmonic operation; the open-type rotary resonance device with the three-section cavity structure is composed of an inclined annular open-type metal structure cut-off section, a cylindrical waveguide structure interaction section and an inclined gradual change annular open-type metal structure output section which are sequentially connected end to end from left to right. The gyrotron structure is simple in design and low in cost, and solves the problem of low output efficiency caused by the fact that second harmonic terahertz wave band electromagnetic waves generated by an existing gyrotron structure are difficult to be compatible with high beam-wave interaction efficiency and a suppression competition mode.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A gyrotron commissioning system and method

PendingCN122652199ALoop controlGyrotron
The application discloses a gyrotron maturation debugging system and method, belongs to the technical field of microwave vacuum electron device testing and maturation, integrates the gas removal maturation, power measurement and protection of the gyrotron, and operates the cathode power supply and the anode power supply in a modulation mode with a settable total pulse width, modulation period and duty cycle, takes the titanium pump current as a vacuum feedback quantity and sets multiple threshold values, automatically reduces the duty cycle, shortens the wave emission time and increases the exhaust time when the titanium pump current exceeds the first threshold value, and automatically stops when the titanium pump current exceeds the second threshold value, so that the closed-loop control of the self-adaptive slowing down first and the protection shutdown later is formed; the water load calorimetry method is used in combination with the integral method to solve the thermal equilibrium problem under the short pulse, and the power calibration is completed in the same process; the wave-free protection is automatically switched according to the output power level, the threshold value is self-calibrated by the actually measured detection voltage in the high-power stage, and the protection is enabled; and the application can improve the flexibility, consistency and reliability of the gyrotron maturation, and significantly improve the maturation efficiency.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Broadband coaxial-circular waveguide output structure of coaxial gyrotron traveling wave tube

ActiveCN120413391ATravelling-wave tubesTransit-tube cooling methodsMicrowaveElectrical conductor
The invention discloses a broadband coaxial-circular waveguide output structure of a coaxial gyrotron traveling wave tube, and relates to the field of microwave and millimeter wave passive devices. The structure comprises a coaxial outer conductor, a coaxial inner conductor and a supporting structure arranged between the coaxial outer conductor and the coaxial inner conductor, the supporting structure comprises a plurality of supporting units distributed along the circumference, the widths of the supporting units are increased and then reduced along the axial direction, and the middle sections of the adjacent supporting units are quasi-rectangular waveguide cavities; two cavities with the two ends communicated are dug in the coaxial inner conductor, and the coaxial inner conductor, the supporting unit and the coaxial outer conductor are provided with penetrating through holes used for injecting cooling liquid into the cavity and enabling the cooling liquid to flow out of the other cavity. The supporting structure is adopted to solve the supporting problem of the output part of the coaxial gyrotron traveling wave tube, and has the advantages of wide band and high mode conversion efficiency; in addition, through the arrangement of the through hole and the cavity structure, the cooling of the output part of the coaxial gyrotron traveling wave tube is realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Rotary acceleration type impact device

The invention relates to the technical field of battery pack testing, in particular to a rotary acceleration type impact device which comprises a base, a rotary acceleration mechanism and a rotary acceleration mechanism. The arc-shaped track is semicircular; the acceleration track is semicircular, and the acceleration track is vertically connected to the base in a sliding mode; the impact track is located above the acceleration track and is vertically and slidably connected with the base, one end of the impact track is matched with the outlet, and the other end of the impact track is vertically and upwards provided with an impact head; the acceleration rod is rotationally connected to the base, a rotating shaft which is located at the circle center of the arc-shaped track and controlled by an acceleration motor is vertically and rotationally connected to the base, one end of the acceleration rod is installed on the rotating shaft, and an acceleration plate used for pushing the ball is arranged at the other end of the acceleration rod. The ball body can roll and accelerate in the whole circular track for unlimited times, the acceleration effect of the ball body is not limited, the number of rolling circles of the ball body can be selected according to experiment requirements, and therefore the speed of the ball body is changed, and the application range is wide.
Owner:SHANGHAI TONGMIN VEHICLE TESTING TECH CO LTD +1

Electronic gun design method applied to ultra-wideband terahertz gyrotron system

The invention provides an electron gun design method applied to an ultra-wideband terahertz gyrotron system, and belongs to the technical field of high-frequency microwaves. The method comprises the following steps: S1, based on axial magnetic field data of an existing magnetic field system, calculating to obtain three-dimensional space magnetic field distribution corresponding to n typical maximum magnetic field intensity points; s2, based on the design indexes, calculating to obtain initial values of partial parameters of the electron gun; and S3, according to the three-dimensional space magnetic field distribution obtained in the step S1, electron gun parameters are optimized by adopting a joint simulation method, and the electron gun parameters meeting the design requirements are obtained. According to the electron gun design method provided by the invention, high-quality electron beams can be stably output within the frequency band of 330 GHz to 600 GHz, and the working performance and the application reliability of a frequency-adjustable terahertz gyrotron system are remarkably improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Battery temperature monitoring device for battery management

The utility model relates to the technical field of batteries, in particular to a battery temperature monitoring device for battery management, which comprises a battery box and a box body fixedly connected to the top of the battery box, a plurality of positioning frames are welded in the battery box, thermistors are embedded in the positioning frames, gyrotron is wrapped outside the positioning frames, and the gyrotron is connected with the box body. The interior of the box body is connected with a cold and hot water tank and a filter tank in a threaded screwing mode through bolts, the top of the cold and hot water tank is connected with a sealing plate, and three heating rods and three cooling rods penetrate through the interior of the sealing plate. At the moment, water is conveniently drained to the top of a filter plate through a first inclined plate in the filter box, scale is filtered through the filter plate, then tiny impurities in the water are diluted through activated carbon cloth, and therefore blockage of the gyrotron can be reduced.
Owner:ANHUI YIHANG NEW ENERGY TECHNOLOGY CO LTD

Compact gyrotron terahertz source device based on pulsed intense magnetic field

ActiveCN121122984BTransit-time tubesResonant cavityHemt circuits
The application belongs to the technical field of electric vacuum devices, and discloses a compact gyrotron terahertz source device based on a pulsed strong magnetic field, which comprises a power supply unit and a gyrotron tube body; a cathode for generating an electron beam and a resonant cavity serving as an electron beam channel are arranged on the gyrotron tube body, and the outer side circumferential wall of the electron beam channel of the gyrotron tube body serves as an anode; a coil unit for generating a pulsed magnetic field is arranged on the outer side circumferential wall of the electron beam channel of the gyrotron tube body; the coil unit comprises a continuous electric conductor, and the electric conductor is helically wound around the gyrotron tube body for multiple turns; the coil unit and the gyrotron tube body are connected in series in the same circuit, so that the current generated by the same power supply sequentially flows through the coil unit and the gyrotron tube body, thereby effectively solving the problems of complex structure, poor synchronous control precision and large energy loss of the conventional double-power-supply system, and improving the working reliability and energy utilization efficiency of the terahertz source device.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Electromagnetic power source

An electromagnetic power source (100, Fig. 1), e.g. a cylindrical or co-axial cavity gyrotron, surface wave source, klystron or travelling wave tube, configured to generate microwave or terahertz power modes for heating plasma in a nuclear fusion reactor (300, Fig. 6) is described. The power source comprises an excitation cavity 108 configured to generate an electromagnetic power mode 112, wherein the excitation cavity comprises a first, inner layer 122 thermally coupled to a second, outer layer 124, wherein the first layer comprises electrically conducting metal, e.g. copper, silver or gold, and the second layer comprises diamond. The diamond of the second layer may be a metal composite diamond or may be formed by chemical vapour deposition (CVD). The second layer may, for example, comprise: a unitary structure; a plurality of coaxially stacked, hollow cylindrical or toroidal segments (130, Fig 8a); or a plurality of rectangular bars joined using a brazing or bonding material (123, Fig. 4).
Owner:UK ATOMIC ENERGY AUTHORITY

Method and system for fast voltage regulation of gyrotron based on long pulse power forbidden zone prediction

The application provides a gyrotron fast voltage regulating method based on long pulse power forbidden zone prediction, belongs to the field of nuclear fusion plasma heating, and comprises the following steps: setting a target power, determining the adjustment range of the anode voltage of the gyrotron based on the target power; starting the gyrotron until the power of the gyrotron reaches a safe advance point, the safe advance point is located before the starting boundary of the power forbidden zone, and the anode voltage of the gyrotron is adjusted to the target voltage at one time according to the adjustment range; under the target voltage, the power of the gyrotron rapidly climbs to the target power after crossing the power forbidden zone and enters long pulse steady-state operation; and the system is also provided; the power forbidden zone and the safe advance point of long pulse operation are identified through statistical analysis, the anode voltage is adjusted at one time predictively when the starting process reaches the safe advance point, the power forbidden zone is quickly regulated after the voltage of the gyrotron is raised, and the gyrotron directly reaches the target power stable region, so that the long pulse starting success rate is significantly improved, the failure risk is reduced, and the starting time is shortened.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Superconducting magnet adjusting flange fine adjustment positioning device for high-precision magnetic axis gyrotron

The invention belongs to the technical field of superconducting magnets, and discloses a superconducting magnet adjusting flange fine-tuning positioning device for a high-precision magnetic axis gyrotron, which comprises a superconducting magnet, and fine-tuning positioning devices are respectively arranged at two axial ends of an outer Dewar of the superconducting magnet. Radial adjusting flanges are arranged between the fine adjustment positioning devices and the outer Dewar of the superconducting magnet, magnetic disk mounting seats are arranged on the inner sides of the radial adjusting flanges, sphere center bearings are arranged in the centers of the surfaces of the magnetic disk mounting seats, and rotary magnetic disks are arranged on the outer sides of the sphere center bearings. And a rotary driving rod is arranged between the two rotary magnetic measuring discs in a penetrating manner. The device can accurately adjust the concentricity of the center of a virtual axis formed by the upper radial adjusting flange and the lower radial adjusting flange and the axis of a measurement magnetic field, the difficulty of the concentricity adjusting process is improved and reduced, the adjusting time is shortened, more manual repeated labor is reduced, and the device is particularly suitable for superconducting magnets for gyrotron pipes with higher coaxiality requirements.
Owner:XIAN JUNENG SUPERCONDUCTING MAGNET TECH

Fusion reactor ECRH system gyrotron power prediction method and system

The invention discloses a fusion reactor ECRH system gyrotron power prediction method and a fusion reactor ECRH system gyrotron power prediction system. The method comprises the following steps: preprocessing collected gyrotron data; performing parameter selection and weight distribution on the preprocessed data; performing data length constraint, signal stability constraint and stable area proportion constraint on the selected and weighted parameters, and screening data meeting the triple engineering constraint conditions as steady-state operation data; grading the steady-state operation data according to the stability ratio and the relative standard deviation, and selecting a data set trained by the deep learning model according to the grade sequence of grading; inputting the data set into a deep learning model, adjusting hyper-parameters of the deep learning model by using a whale optimization algorithm, training the deep learning model, and inputting gyrotron data collected in real time into the trained deep learning model to obtain predicted gyrotron power; the method has the advantage that the prediction precision and efficiency are improved.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Thermal coherent scattering system for measuring ion temperature of magnetic confinement fusion device

The invention discloses a thermal coherence scattering system for measuring the ion temperature of a magnetic confinement fusion device, and relates to the technical field of magnetic confinement fusion plasma microwave diagnosis, and the system comprises a gyrotron which is used for generating a millimeter wave light beam; the quasi-optical matching unit is arranged at the output end of the gyrotron and is used for converting the millimeter wave light beam into a TEM00 mode and coupling the millimeter wave light beam into the metal corrugated circular waveguide in an HE11 mode; one of the three metal corrugated circular waveguides is installed at the output end of the quasi-optical matching unit, the two adjacent metal corrugated circular waveguides are connected through a rotatable polarizer elbow, and the two rotatable polarizer elbows jointly form a rotatable polarizer; according to the thermal coherence scattering system for measuring the ion temperature of the magnetic confinement fusion device, a metal corrugated circular waveguide is adopted for transmission. The advantage that the metal corrugated circular waveguide is used for transmission is that the waveguide has a shielding effect, and an additional shielding mode does not need to be considered.
Owner:UNIV OF SCI & TECH OF CHINA